在土岩爆破中，夹层的存在对爆破质量和爆破效果有着较大的影响。
In rock blasting, the rock interlayer has great influence on the quality and effect of blasting.
该钻机主要用于土、岩锚杆、路基、坝基、挡土墙加固、爆破孔等钻孔工程以及高压旋喷孔的施工。
The drilling rig is mainly used in soil and rock anchoring, consolidation of road base, dam base and retaining wall, and blasting hole drilling and jet-grouting.
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